At the college entrance examination, each candidate is admitted or rejected according to whether he has passed or failed the tests. If the candidates who are really capable, 80% pass the test and of the incapable, 25% pass the test. Given that 40% of the candidates are really capable, the proportion of capable college students is about 


(a) 
68% 
(b) 
70% 
(c) 
73% 
(d) 
75% 
At the college entrance examination, each candidate is admitted or rejected according to whether he has passed or failed the tests. If the candidates who are really capable, 80% pass the test and of the incapable, 25% pass the test. Given that 40% of the candidates are really capable, the proportion of capable college students is about 


(a) 
68% 
(b) 
70% 
(c) 
73% 
(d) 
75% 
Let the total number of candidates be
No. of capable candidates who got admitted to college
= 80% of 40% of
No. of incapable college students =
Req. percentage =